Asteroth was a being of pure evil that sought to destroy all life in the universe and became an opponent of the Marvel superhero Beta-Ray Bill.
Long ago she was banished to the Cosmic Hell by her own species to safeguard the universe but was freed many centuries later when Stardust opened a portal to this dimension during a battle with Beta-Ray Bill.
Weakened from her centuries of imprisonment Asteroth went on a rampage, consuming as much as she could in order to grow ever more powerful from the devastation.